I forgot to mention that i am using A20 SoC but it should be similar.
среда, 19. август 2020. 11.32.58 UTC+2, Milos Ladni је написао/ла:
>
> Hi, i do this few weeks ago for LVDS display...
>
> What i did in u-boot configuration:
> CONFIG_VIDEO_SUNXI=y
> # CONFIG_VID
Hi, i do this few weeks ago for LVDS display...
What i did in u-boot configuration:
CONFIG_VIDEO_SUNXI=y
# CONFIG_VIDEO_HDMI is not set
# CONFIG_VIDEO_VGA is not set
# CONFIG_VIDEO_COMPOSITE is not set
Hi,
unfortunatelly i played with A10s long time ago and do not have experience
with mainlune u-boot and A10s, only with mainline u-boot for A20 SoC.
If it's of any help to you, i just recompiled u-boot 2020-04 for
'A10s-OLinuXino-M_defconfig' and i got 'u-boot-sunxi-with-spl.bin' without
Hi,
i am not sure for which board you are trying to compile but generally...
If you have yout custom board or want to create your custom default setup
you can create new branch and execute:
$ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make savedefconfig
This command will create defconfig file.
Hi Stefan,
i am not sure where is the issue but here are my tips how i built new
meinline u-boot few months ago...
https://linux-sunxi.org/Mainline_U-Boot
Install additional packages:
$ apt-get install swig python-dev python3-dev
Build HowTo:
$ git clone git://git.denx.de/u-boot.git
$ git
I forgot to put link for cedar VE PoC :)
https://github.com/milosladni/sunxi-tvin2jpeg_h264
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I think i have two problems:
1. When i decode video i need to find a way to show it under GUI
application by using Display Engine (DRM in this case think) as a separate
layer that is always on top. On legacy kernel, i used Display Engine by
/dev/disp but it does not exist anymore.
2. Find a
Hi Andrey, thank you for supporting.
Actually, i am not sure if i need 'lima' driver or not... Because i run a
simple web based (Javasctipt) GUI application in firefox in fullscreen
kiosk mode. It has only two tabs (contexts) with fixed size without
scrolling, a few buttons and window space
Hi all,
I am trying to port my custom board from legacy kernel 3.4 to the mainline.
I am using an LVDS display with a capacitive touchscreen and it works fine.
For the test, i am currently running Armbian Debian Buster without Desktop
environment because i need only one application on top of
Thanks, i saw this in officialy kernel and dts for Lime2. It works perfect
now:)
петак, 10. јул 2020. 08.06.46 UTC+2, plaes је написао/ла:
>
> On Thu, Jul 09, 2020 at 02:38:17PM -0700, Milos Ladni wrote:
> > Hi, thank you very much!
> >
> > It works now. I total
Hi, thank you very much!
It works now. I totally forgot to enable ldo3 and ldo4:)
I am using my custom board and i want to migrate from legacy 3.4 to
mainline.
Thanks,
Milos
четвртак, 09. јул 2020. 19.06.05 UTC+2, Chen-Yu Tsai је написао/ла:
>
> Hi,
>
> On Fri, Jul 10, 2020 at 12
Hi,
I am using mainline kernel on my A20 board and can not get GPIO working for
some ports.
I tested them through standard sysfs and for pin number id i used next :
(position of letter in alphabet - 1) * 32 + pin number
I tried with PE0, PE1, PE2, and PE4, i think that whole PE port does not
Hi,
thank you for your update status. Finally, I also got 720P at ~25 fps.
So, if someone needs info, OV5640 works with A20 at ~25 fps, the output
resolution is 1280x720 (input resolution 2560x1440 and pixel binning are
turned on, so sensor give to me half of the input). The CPU load is ~5%
you manage to get ov5640 working properly or you give up?
Any help is welcome.
Best regards,
Milos Ladni
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Hello Yong,
Did you test CPU load during capture frames from CSI and now many fps did
you get?
Recently i noticed problem with CPU load which is related to fps not to
resolution on old 3.4.75 kernel on A20 platform.
I opened new topic few weeks ago but i did not get any answer yet..
Maybe you
Hi,
First, i have never used LiveSuit, i use PhoenixSuit..
Packing/Unpacking image for phoenixsuit have to be done with with
imgRePacker tool.
Link: https://forum.xda-developers.com/showthread.php?t=1753473
My advice is to find already ready image which work with phoenixsuite for
cubieboard2
Hi again,
Does anyone played with CSI recently?
I tried to change camera sensor from ov5642 to ov7670 and results are very
similar.
640x480 15 fps 60% CPU. Just trigger frames from CSI nothing more.
In meanwhile i found out that after epoll wake up for reading VIDIOC_DQBUF
execute fast and
Hello,
I have connected ov5642 camera sensor to csi0 of custom board using A20
with kernel linux-sunxi 3.4.75.sun7i+.
I have problem with high CPU load.
My goal is to encode 1280x720 25fps from ov5642 or similar CSI sensor to
h264 and mjpeg.
For start i just read RAW YUV 422 frames from
It depends on what are your requirements, i tested analogue CVBS and it
works ok with 4 channels simultaneous..
You can combine how do you want this tv inputs.. tvin0..4
I also tested long time ago CSI digital port with ov7670 but i do not
remember which one CSI0 or CSI1.. And i think that i had
Hello,
Is it possible to flash nand from linux command line?
I tried Phoenixsuite, PhoenixUSBPro and Livesuite on Win7, livesuit for
linux but it is also graphical..
Thanks,
Milos
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Hi,
1 - As far as i know A20 does not have temperature sensor that is user
readable.
2 - I am not sure which PMU you are using but i suppose that it is axp209.
It only have over temperature protection.
But i am not sure, it has support for battery temperature monitoring but i
have not used so
I'm glad to hear that.
I hope that you will find out what the cause is.
However, before ioctl reset, sometimes i had some strange glitches in h264
decoded picture when work simultaneous with h264enc.
Some small blocks in the picture was wrong (usually upper left part of
picture) color or
Hi,
> What i can suggest you to do is to make an experience, to check if the
> hardware is been correctly configured for each task.
>
> Before selecting the subengine for each task change, to do a hardware
> reset first. (In your tvin2jpeg.c, in function ve_selectsubengine put a
> call to the
Hi,
> The application crashs(segfault?), and running under a debugger doesn't
> give any clues about what could be?
The app works fine and then in some arbitrary moment when need to decode
new frame which consisting from few slices it stuck on first slice in this
frame while
Thank you Manuel!
I managed to make a H264 decoder and it works fine.
Now i can run all four operation simultaneous but...
Known bug:
For now the app can play source with 'num_ref_frames' greater or equal to 1
but if i try to play source with 'num_ref_frames: 3' simultaneous with
264Enc the
Hi again,
I just wanted to make PoC test simultaneous tasks for my future project and
to show others how much this platform is powerful.
I need tvin, h264-jpeg encoder+scaler and decoder. Maybe i do not need all
four operation simultaneous, but for now i have two cases:
-
Hello Manuel,
I just added hw JPEG decoder in my apps.
Now i can do simultaneous h264 encoding, jpeg encoding and jpeg decoding
with just ~20% CPU and 25 fps.
How app works:
Take frame from camera tv-in CVBS 720x576, show it on display by sunxi
display engine in smaller resolution 542x359
Hi,
I'm sorry for the delay.
I added this to my example and it works..
Thank you Manuel.
Best regards,
Milos Ladicorbic
On Friday, November 25, 2016 at 10:37:24 PM UTC+1, Manuel Braga wrote:
>
> On Thu, 24 Nov 2016 23:14:21 -0800 (PST) Milos Ladni
> <milosla...@gmail
Hi,
> last time maybe wasn't very clear explained what this
> > "divide scaler" really is.
>
You are right, i did not understand what divide scaler is.
I do not really need raw pictures when i have arbitrary scaler for encoding,
this was just for test, i'll fix it.
> Another thing were you
Sorry i do not have H3, only A10, A10s, A13, A20
On Thursday, November 24, 2016 at 2:36:53 PM UTC+1, @lex wrote:
>
> Have you tried to port it (JPEG encoder) to H3?
>
> On Thursday, November 24, 2016 at 10:20:38 AM UTC-2, Milos Ladni wrote:
>>
>> Hello,
>>
>>
If anybody else is interesting there is my project:
https://groups.google.com/forum/#!topic/linux-sunxi/pI0orsfdh_U
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Hello,
This is yet another Proof of Concept analogue TV decoder (TV-IN) and
hardware accelerated H264-JPEG encoder with VEISP scaling for sunxi.
This example capture frames from tvin (CVBS) scale it to VGA or QVGA and
simultaneous encode frame to jpeg image and h264 stream.
sunxi-tvin2jpeg_h264
It works now.
I forgot to set MACC_ISP_OUTPIC_STRIDE, just MACC_ISP_PIC_STRIDE.
I do not know how i did not see that, sorry and thank you very much again.
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Cool, arbitrary scaler is working now..:)
Thank you a lot Manuel!
By the way, divide-scaler is not working properly yet, maybe i do not need
it anymore but It would be nice if i can contribute to the development of
VE.
These days i will try to merge tvin and hw jpeg encoder in simple
Hi.
Today i have made some modifications according to your instructions.
So, jpeg encoding without dividing is working well.
But when i try to add divider in encode chain there are some problems (i
tried to divide source image by 2).
It looks like it fill just first 360 bytes (half of 720 in my
to scale down source image by VEISP divider.
Best regards,
Milos
On Monday, October 24, 2016 at 7:38:56 PM UTC+2, Manuel Braga wrote:
>
> Hi.
>
> On Fri, 21 Oct 2016 03:19:46 -0700 (PDT) Milos Ladni
> <milosla...@gmail.com > wrote:
> > Hi everyone,
> >
> >
Hi everyone,
Because there are PoC of hardware JPEG encoding and decoding, i am now
interesting of hw scaling..
Does does anyone tried to scale image (raw yuv 4:2:2 4:2:0 or rgb) with A20
hardware?
How can i do this? I need scaler to scale image from one resolution to
another.
Concretely i
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